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I am plannin to buy a quad core desktop.my config is- P-Quad core Q8300, MOBO-MSI P43T-C51, Ram-2+2 GB DDR2 800MHZ, GPU-Sapphire Radeon HD5750 1GB DDR5, HDD-Seagate Barracuda 7200.12 1TB, MONITOR-SAMSUNG 2233SW PC CASE-ZEBRONIC ANTIBIOTIC. But I cant understand,what psu I can use for...

Hi all, I have finally decided to upgrade my system to something more futuristic and better suited for recent games. Please advice whether this config will last atleast for 3 yrs: Core i5 i750 2.66GHz MSI P55-GD80 Corsair TW3X4G-1600C9DHX 4GB Kit Coolermaster Hyper N620 Sapphire HD5850 1GB...